This violent steering shake, especially after hitting a bump at speed, is known as Death Wobble, and it is common in 4×4 vehicles with a solid front axle such as the Wrangler.
Common causes
- Worn bushings or a damaged track bar.
- Worn ball joints or tie rod ends.
- A weak steering stabilizer.
- Unbalanced or unevenly worn tires, or incorrect alignment angles.
The cure
The right fix is to inspect every steering and suspension point and replace the worn part, rather than just replacing the stabilizer. Then align the car, balance the tires and road-test it.
This information is general and for awareness only; it does not replace your owner’s manual or an inspection by a specialist.